Technological
Technological feasibility measures the practicality of a specific
technical solution to the problem.
It is also a measure of the availability of technical resources
and expertise.

Operational
Operational feasibility is a measure of how well the solution
will work in the organization.
Some questions that must be considered are:

Is the problem worth solving?

Will the proposed solution work?

How do users and managers feel about the proposed solution?
Are they motivated to support the proposed solution?

Economic
Economic feasibility is a measure of how cost effective the
proposed solution will be.
This is often called a cost-benefit analysis.
Benefits can usually be estimated during request analysis.
But, it is difficult to estimate costs until all of the requirements
are known and technology choices has been made.

Schedule
Schedule feasibility is a measure of the ability of the project
to meet proposed deadlines.
Deadlines may be mandatory or desirable.
Mandatory deadlines are often imposed when the government passes
a new law or changes an existing regulation.